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MArishka [77]
3 years ago
13

The Hertzsprung-Russel diagram is used to show the relationship between which two characteristics of stars?

Physics
2 answers:
kykrilka [37]3 years ago
7 0
Between the stars' absolute magnitudes<span> or </span>luminosities<span> versus their </span>stellar classifications<span> or </span>effective temperatures<span>. </span>
larisa [96]3 years ago
5 0
<h3><u>Answer;</u></h3>

Luminosity and temperature of a star

<h3><u>Explanation;</u></h3>
  • <em><u>Hertzsprung-Russel diagram or HR diagram is a scatter plot or a graphical tool that is used by astronomers to classify stars based on their luminosity, color, temperature, spectral type  and also the stage of evolution.</u></em>
  • <em><u>The HR diagram plots the temperature of the stars against the luminosity, or the color of starts against absolute magnitude.</u></em>
  • The HR diagram is divided into stages, for example those stars at the stable phase of hydrogen burning are found within the main sequence according to their mass.
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6 0
3 years ago
A rock is thrown horizontally from a high building at 33.8 m/s. What is the magnitude of its velocity 4.25 s later?
Alex17521 [72]
<h2>Answer:53.63ms^{-2}</h2>

Explanation:

The equations of motion used in this question is v=u+at

When a object is projected horizontally from a sufficiently height,the x-component of acceleration remains zero because there is no force that drags the object in x direction.

But,due to gravity,the object accelerates downward at a rate of 9.8ms^{-2}.

In X-Direction,

Given that initial velocity=u_{x}=33.8ms^{-1}

Using v=u+at,

v_{x}=33.8+(0)4.25=33.8ms^{-1}

In Y-Direction,

Given that initial velocity=u_{x}=0ms^{-1}

Using v=u+at,

v_{y}=0+(9.8)4.25=41.65ms^{-1}

v=\sqrt{v_{x}^{2}+v_{y}^{2}}

v=\sqrt{1142.44+1734.72}=\sqrt{2877.163}=53.63ms^{-1}

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3 years ago
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So, we can say that inductive reactance normally replace by the capacitors.



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